76 lines
4.7 KiB
Diff
76 lines
4.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Shane Freeder <theboyetronic@gmail.com>
|
|
Date: Sun, 29 Jul 2018 05:02:15 +0100
|
|
Subject: [PATCH] Break up and make tab spam limits configurable
|
|
|
|
Due to the changes in 1.13, clients will send a tab completion request
|
|
for all bukkit commands in order to factor in the lack of support for
|
|
brigadier and provide backwards support in the API.
|
|
|
|
Craftbukkit, however; has moved the chat spam limiter to also interact
|
|
with the tab completion request, which while good for avoiding abuse,
|
|
causes 1.13 clients to easilly be kicked from a server in bukkit due
|
|
to this. Removing the spam limit could cause issues for servers, however,
|
|
there is no way for servers to manipulate this without blindly cancelling
|
|
kick events, which only causes additional complications. This also causes
|
|
issues in that the tab spam limit and chat share the same field but different
|
|
limits, meaning that a player having typed a long command may be kicked from
|
|
the server.
|
|
|
|
Splitting the field up and making it configurable allows for server owners
|
|
to take the burden of this into their own hand without having to rely on
|
|
plugins doing unsafe things.
|
|
|
|
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
|
|
index b46b10c726b53b1106cc74ec9a5d6ca6f45c96fe..c3539fabda1887cca6e82abce26dff088cdc4251 100644
|
|
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
|
|
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
|
|
@@ -318,4 +318,18 @@ public class PaperConfig {
|
|
Bukkit.getLogger().log(Level.INFO, "Using Aikar's Alternative Luck Formula to apply Luck attribute to all loot pool calculations. See https://luckformula.emc.gs");
|
|
}
|
|
}
|
|
+
|
|
+ public static int tabSpamIncrement = 1;
|
|
+ public static int tabSpamLimit = 500;
|
|
+ private static void tabSpamLimiters() {
|
|
+ tabSpamIncrement = getInt("settings.spam-limiter.tab-spam-increment", tabSpamIncrement);
|
|
+ // Older versions used a smaller limit, which is too low for 1.13, we'll bump this up if default
|
|
+ if (version < 14) {
|
|
+ if (tabSpamIncrement == 10) {
|
|
+ set("settings.spam-limiter.tab-spam-increment", 2);
|
|
+ tabSpamIncrement = 2;
|
|
+ }
|
|
+ }
|
|
+ tabSpamLimit = getInt("settings.spam-limiter.tab-spam-limit", tabSpamLimit);
|
|
+ }
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
|
|
index e2da92d30ee405875dd711c1c118a97d2532b38e..be201267110d8cebb8d4c657f3b40191b38b4819 100644
|
|
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
|
|
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
|
|
@@ -227,6 +227,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
|
|
private long keepAliveChallenge;
|
|
// CraftBukkit start - multithreaded fields
|
|
private final AtomicInteger chatSpamTickCount = new AtomicInteger();
|
|
+ private final java.util.concurrent.atomic.AtomicInteger tabSpamLimiter = new java.util.concurrent.atomic.AtomicInteger(); // Paper - configurable tab spam limits
|
|
// CraftBukkit end
|
|
private int dropSpamTickCount;
|
|
private double firstGoodX;
|
|
@@ -358,6 +359,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
|
|
this.server.getProfiler().pop();
|
|
// CraftBukkit start
|
|
for (int spam; (spam = this.chatSpamTickCount.get()) > 0 && !this.chatSpamTickCount.compareAndSet(spam, spam - 1); ) ;
|
|
+ if (tabSpamLimiter.get() > 0) tabSpamLimiter.getAndDecrement(); // Paper - split to seperate variable
|
|
/* Use thread-safe field access instead
|
|
if (this.chatSpamTickCount > 0) {
|
|
--this.chatSpamTickCount;
|
|
@@ -711,7 +713,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
|
|
public void handleCustomCommandSuggestions(ServerboundCommandSuggestionPacket packet) {
|
|
// PlayerConnectionUtils.ensureMainThread(packetplayintabcomplete, this, this.player.getWorldServer()); // Paper - run this async
|
|
// CraftBukkit start
|
|
- if (this.chatSpamTickCount.addAndGet(1) > 500 && !this.server.getPlayerList().isOp(this.player.getGameProfile())) {
|
|
+ if (this.chatSpamTickCount.addAndGet(com.destroystokyo.paper.PaperConfig.tabSpamIncrement) > com.destroystokyo.paper.PaperConfig.tabSpamLimit && !this.server.getPlayerList().isOp(this.player.getGameProfile())) { // Paper start - split and make configurable
|
|
server.scheduleOnMain(() -> this.disconnect(new TranslatableComponent("disconnect.spam", new Object[0]))); // Paper
|
|
return;
|
|
}
|